Obviously, these bears have been collared for research purposes, as finding them in their den would be some kind of chore without it.

There’s a great look at mama bear putting her big paws on some leaf litter to line their bed with. Researchers say that they will begin to prepare the dens in September and October and that even the cubs will help.

Once huddled in their shelter the bears can and will move about during the winter months, changing their position many times.

Even in a state of semi-hibernation they are sensitive to outside noise and can be disturbed, causing scientists to caution against approaching any known active den.